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### SELECT

Pointcloud Operator dialog box - SELECT Operator

The SELECT operation selects a subset of data contained in a COP command.

To apply the SELECT operation to a pointcloud, click Select Pointcloud () from the Pointcloud toolbar, or select Operation | Pointcloud | Select. By default, the Polygon option is used when you click the Select Pointcloud button.

To select a region of points:

1. Select the desired option button inside the dialog box:

Box

Circle

Sphere

Polygon

Press the End key to close the polygon selection.

2. Select the Pointcloud command that you want to apply the selection to form the list of commands.

3. Make the selections that define your selection type by clicking and dragging in the CAD in the Graphic Display window. The axis of the selection entities should be perpendicular to the current view. See the table below as a guide for what you should select.

4. If you want to keep the points inside the selection domain, select In. If you want to keep the points outside the selection domain, select Out.

5. After clicking the necessary points in the Graphic Display window, click the Apply button to define the selection type. PC-DMIS displays the points inside or outside the selected domain in the Graphic Display window. If you use the Sphere selection type, the closest pointcloud point is used for the center of the sphere.

6. When you’re finished, click Create. PC-DMIS inserts a COP/OPER,SELECT command.

If you want to select the complement data instead, you can use the BOOLEAN operator to do that. For information on the Complement option inside BOOLEAN, see the "BOOLEAN" topic.

Type | Points Needed
Box | Select two corners.
Circle | Select the center and a point specifying the radius of the circle.
Sphere | Click one point. PC-DMIS projects it onto the cloud of points to find the closest point. This represents the center of the selected sphere. Click another point. PC-DMIS uses this second point to determine the radius of the sphere.
Polygon | Select the vertices of the polygon. Press the End key to close the polygon.

Click Create to insert a COP/OPER,SELECT command into the Edit window.

For example:

COPSELECT4=COP/OPER,SELECT,BOX,SIZE=27377

REF,COP1,,

More:

Pointcloud Point Information